Genus: Euglenas in a close fitting lorica; a single long flagellum extends through small opening;
lorica with or without short collar; yellow to brown (How to know the protozoa, 1979).
Lorica often possesses numerous spines, composed of ferric hydroxide impregnated with brown
manganic compound (Kudo, 1966).
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Trachelomonas, x 400, x 640, Uruguay Nov. 1999, photo by Yuuji Tsukii
